# US 8,568,865 B2 · Ceramic composite wall covering

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- Number: US 8,568,865 B2
- Document ID: US8568865B2
- Status: Granted
- Kind: B2
- Application number: 10/588,952
- Filed: 2004-12-17
- Published: 2008-01-24
- Granted: 2013-10-29
- Earliest claimed: 2004-02-10
- Assignees: Evonik Degussa GmbH
- Applicants: Edwin Nun; Marie-Theres Wilkes; Hannelore Armoneit; Sigrid Banken; Volker Hennige; Christian Hying; Gerhard Geipel; Norbert Kern; Eckart Berendes; Christian Herkt-Bruns; Andreas Gutsch
- Inventors: Edwin Nun; Marie-Theres Wilkes; Hannelore Armoneit; Sigrid Banken; Volker Hennige; Christian Hying; Gerhard Geipel; Norbert Kern; Eckart Berendes; Christian Herkt-Bruns; Andreas Gutsch
- Web page: https://patentgrep.com/patent/US8568865B2

## CPC

- C04B 35/62222: {obtaining ceramic coatings (coating of mortars, concrete, artificial or natural stone or ceramics C04B41/45; laminated ceramic products B32B18/00; coating of glass C03C17/00, applying ceramic coatings on silicon for semi-conductor purposes H10W; coating metallic materials C23)}
- E04F 13/002: {made of webs, e.g. of fabrics, or wallpaper, used as coverings or linings (of a number of similar elements carried by a common web E04F13/0862; paperhanging, tapestry work B44C7/00)}
- Y10T 428/24: Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T 428/24926: including ceramic, glass, porcelain or quartz layer
- C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE
- E04F: FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS (windows, doors E06B)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Disclosed is a wallcovering assembly consisting of a base material and at least one ceramic coating/topcoat with or without an optional ceramic interlayer.

## Claims

### Claim 1

A wallcovering assembly, comprising:
a base material,
at least one ceramic coating comprising ceramic particles selected from the group consisting of oxides of metals, oxides of semimetals, nitrides of metals, nitrides of semimetals, borides of metals, borides of semimetals, carbides of metals and carbides of semimetals embedded in a matrix consisting of a silicon network linked together by Si—O—Si bridges,
and one or more ceramic interlayers present between the base material and the ceramic layer,
wherein the ceramic interlayer contains particles of an inorganic component comprising essentially at least one component selected from the group consisting of at least one metal, at least one semimetal and at least one mixed metal with at least one element of the third to seventh main group that are bonded by at least one inorganic adhesive to each other and to the layer present underneath the ceramic interlayer, and
wherein at least one of the ceramic coating and the ceramic interlayer comprise an inorganic-organic silicon network including an organic component covalently bonded between the Si atoms and wherein the organic component has a hydroxyl group and an amine group and a structural unit of the following formula (II):
wherein R10 is an organic radical.

### Claim 2 (depends on 1)

The wallcovering assembly of claim 1, wherein the ceramic coating comprises POSS clusters or hydrophobicized silicas as particles.

### Claim 3 (depends on 1)

The wallcovering assembly of claim 1, wherein the ceramic coating is transparent to electromagnetic radiation having a wavelength in the region of visible light.

### Claim 4 (depends on 1)

The wallcovering assembly of claim 1, wherein the ceramic interlayer comprises particles of oxides selected from the group consisting of Al2O3, ZrO2, TiO2 and SiO2 having an average particle size from 200 nm to 5 μm, and a silicon network,
wherein the silicon of the network is bonded via oxygen atoms to the oxides of the ceramic coating, via organic radicals to the layer underneath the ceramic coating and via at least one chain of carbon atoms to a further silicon.

### Claim 5 (depends on 1)

The wallcovering assembly of claim 1, wherein R10 is a substituted or unsubstituted alkyl, aryl, acyl or alkylaryl radical.

### Claim 6 (depends on 1)

The wallcovering assembly of claim 1, wherein R10 is a dimethylmethylene radical.

### Claim 7 (depends on 1)

The wallcovering assembly of claim 1, which consists of the base material, the ceramic coating and the ceramic interlayer.

### Claim 8

A wallcovering assembly, consisting of:
a base material,
at least one ceramic coating comprising ceramic particles selected from the group consisting of oxides of metals, oxides of semimetals, nitrides of metals, nitrides of semimetals, borides of metals, borides of semimetals, carbides of metals and carbides of semimetals embedded in a matrix consisting of a silicon network linked together by Si—O—Si bridges,
and one or more ceramic interlayers present between the base material and the ceramic coating,
wherein the ceramic interlayer contains particles of an inorganic component comprising essentially at least one component selected from the group consisting of at least one metal, at least one semimetal and at least one mixed metal with at least one element of the third to seventh main group that are bonded by at least one inorganic adhesive to each other and to the layer present underneath the ceramic interlayer,
wherein at least one of the ceramic coating and the ceramic interlayer comprise an inorganic-organic silicon network including an organic component covalently bonded between the Si atoms and wherein the organic component has a hydroxyl group and an amine group.